Square D QMB3240M - Fusible Safety Switch 400A@240V (200kA AIC 3-Pole)

Square D QMB3240M is a fusible safety switch designed for industrial power distribution systems requiring high fault current protection. This 3-pole panel-mount switch features a 240V AC voltage rating and 400A current capacity with a 200kA interrupting rating at 240V for robust circuit protection. The 65 lb NEMA 1-rated enclosure houses R-class fuses in a single-configuration design compatible with HHED frames. UL-listed and compliant with industrial safety standards, it's engineered for three-phase applications in manufacturing plants, data centers, and heavy machinery installations.

Key Features & Specifications

• Type: QMB Saflex fusible safety switch, panel mount
• Voltage Rating: 240V AC
• Current Rating: 400A
• Dimensions: Compatible with HHED frames
• Standards: UL listed, NEMA 1
• Applications: Industrial power distribution, manufacturing facilities
• Switch Type: Fusible
• Configuration: Single
• Poles: 3
• AIC rating: 200kA@240V
• Phase: 3
• Fuse Class: R
• Weight: 65 lb